Susan Spencer-Churchill, Duchess of Marlborough

Susan Spencer-Churchill, Duchess of Marlborough (previously Spencer and Lady Blandford; 10 April 1767 – 2 April 1841), formerly Lady Susan Stewart, was the wife of George Spencer-Churchill, 5th Duke of Marlborough.

She married the future duke on 15 September 1791, when he was styled Marquess of Blandford.

[1] They were married at her father's house in St James's Square, London, by the Archbishop of Canterbury, John Moore.

[2] They had four children: In 1817 the marquess inherited the dukedom from his father, George Spencer, 4th Duke of Marlborough, at which point his wife became Duchess of Marlborough; later that year, he changed their surname from Spencer to Spencer-Churchill (by royal licence dated 26 May 1817).

[5] The duchess died at her house in Park Lane, London, aged 73.